package ex14;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.util.Locale;

public class Main {

	public static void main(String[] args) throws IOException {
		
		InputStreamReader it = new InputStreamReader(System.in);
		BufferedReader in = new BufferedReader(it);
		
		int X;
		double Y, CONSUMO;
	
		X = Integer.parseInt(in.readLine());
		Y = Double.parseDouble(in.readLine());

		CONSUMO = X / Y;
		
		System.out.format(Locale.ENGLISH, "%.3f km/l\n", CONSUMO);

	}

}